This Catalyst Quest needs to be fixed or otherwise removed. Nevermind the fact that the quest broke if someone does the puzzles out of order because the room in the first encounter has 3 of them and they are mutually exclusive spawns. Even after getting a friend that hadn't done them before just so we could manipulate the spawn, the dungeon still breaks on the -blam!- step of getting the catalyst. The quest is finished. I am supposed to unlock the 4th slot for the secret chest room so that I can put in the code for the catalyst. I have done every single puzzle that appears in this dungeon except for the very complicated one after the tripmine hallway. The door to the final puzzle. Will. Not. Open. I can see that there is a vandal with the viral operator buff behind the barrier that is keeping me from the puzzle, yet the barrier stays closed no matter what I do. I even tried to get a friend that did the final puzzle (btw she has her ice breaker but because she got the catalyst before she got the gun, the catalyst will not slot into her gun, fix that too please) in an attempt to cheese getting the catalyst. We hoped that because she unlocked the 4th slot for the code and did the final puzzle, that the crystals would appear for us and we could get our catalyst and maybe fix hers. The crystals did appear. What did not appear was the operator buff in the second secret chest room to put in the code. Please Bungie, its been months. Please fix the dungeon, or better yet just make it so that people that have finished the dungeon enough times just have the catalyst, because as cool as these puzzles are they just don't work.